If the rifle came from FDAR originally it is under warranty until opened by customer.....just send it in with a note, will fix or replace....
If I send me in, can you fix me ;-)+1. God knows "I" could use a tune, and my trigger is a little to light... (and my main spring is probably bent, or just broken... My wife says i could use new seals, especially after mexican food)lol.Those numbers are still pretty hot. generally they settle down in the 660 to 670 range, and they are quite consistent. Are you sure that gun has 750+ shots through it? it just seems to me as a rifle that has not settled in yet. I had 2 of them in .22, and one was a 650 fps gun, and the other i detuned even further (590 fps). but they were consistent (maybe within 5 fps) and very easy to shoot accurately. I mean, your gun is shooting an avg of 703.6 fps and the variation between the lowest shot and highest is about 26 fps. i would shoot it some more, clean the bore and do a breach seal test.
Something is very wrong...fix is no problem, just send it in...spring? seal? or replace....
Steve,It took me around 200 ish rounds to get everything working. Meaning, I had to understand the gun, how it likes to be held and understand the shot cycle. While all that learning was happening, the internals are breaking in too.Springers are a test of patience and I learned that the hard way a long time ago. I know you have several springers so what I am saying is not new to you. Give it time and once you use the right pellets, you will see the rifle will surprise you. Mike stands behind his product and I am certain if he says the JTS 18.1 will give you best results then try them and hopefully you get the performance you are looking for